Leon Louis Robinson

US Patent:

40544214, Oct 18, 1977

Filed:

Apr 30, 1976

Appl. No.:

5/681900

Inventors:

Leon Robinson - Upland CA
Allan Sass - Los Angeles CA

Assignee:

Occidental Research Corporation - La Verne CA

International Classification:

C10L 910
C10B 5700

US Classification:

44 1F

Abstract:

This invention covers a process for reducing the sulfur content of char by washing the char with an acid followed by treatment with hydrogen gas.

US Patent:

41881915, Feb 12, 1980

Filed:

Nov 7, 1975

Appl. No.:

5/629875

Inventors:

James R. Longanbach - Claremont CA
Leon Robinson - Upland CA

Assignee:

Occidental Petroleum Corporation - Los Angeles CA

International Classification:

C10L 910
C10B 5700

US Classification:

44 1F

Abstract:

This invention covers a process for reducing the sulfur content of coal and coal char and the ignition temperature of coal char. Coal is converted into char at temperatures not in excess of about 1600. degree. F. The char is introduced into a caustic system which is maintained at a temperature between about 500. degree. F. to about 750. degree. F. Intimate contact is maintained between the caustic and the char for a period of about 2 to 30 minutes to leach the sulfur from the char. The desulfurized char is thereafter separated from the caustic and washed.

US Patent:

43934838, Jul 12, 1983

Filed:

Aug 7, 1981

Appl. No.:

6/291000

Inventors:

David C. Hammond - Hatboro PA
Stephen M. Elchenko - Pipersville PA
John M. Tralies - Norristown PA
Peter W. Verburgt - Perkasie PA
Leon R. Robinson - Morrisville PA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H04B 1700

US Classification:

367 13

Abstract:

A DICASS test set utilizes a microcomputer to process infromation from an put and a down link section, generate the appropriate control logic for all the various electronic sections and format the appropriate output data for the output in uplink sections. A keyboard is provided from which an operator can input data the controller. A display and printer is provided to which the controller outputs information to the operator. The down link section consists of a UHF receiver, envelope detector, timer, filter bank, decoder, frequency counter. The uplink section consists of a reverberation simulator, a signal synthesizer, bearing, echo level and sea state controllers, three separate noise sources, multipliers and summing circuitry.